STP754: New Intermetallic Compounds in Zircaloy-4

    Grange, JM
    Metallurgist, senior engineer, and director of production, Cezus, Pechiney Ugine Kuhlmann, Ugine,

    Charquet, D
    Metallurgist, senior engineer, and director of production, Cezus, Pechiney Ugine Kuhlmann, Ugine,

    Moulin, L
    Metallurgist, senior engineer, and director of production, Cezus, Pechiney Ugine Kuhlmann, Ugine,

    Pages: 9    Published: Jan 1982


    Abstract

    The precipitation of intermetallic compounds in Zircaloy-4 has been studied by transmission electron microscopy. The classical precipitates with a ZrCr2 lattice have been observed. In addition to these precipitates, a hexagonal phase with lattice parameters a = 7.9 Å and c = 3.3 Å can be developed by quenching from the temperature range 840 to 870°C. This phase is metastable and transforms into a zirconiumiron compound by aging at 600 to 650°C.

    Keywords:

    zirconium, nuclear industry, zirconium alloys, intermetallics, microstructure


    Paper ID: STP37049S

    Committee/Subcommittee: B10.02

    DOI: 10.1520/STP37049S


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